Use Fluid Stopper for remaining fluid inside the funnel to flow to the radiator hose by squeeze it and release. When run the engine with funnel attached, fluid level should be at low position. Keep RPM on idle position.
19pcs/SET Cooling System Fill kit Spill Proof Radiator Coolant Filling Funnel UK
Spill Proof Radiator Coolant Filling Funnel Kit 19-pcs Cooling System fill kit
19-pcs Cooling System fill kit Spill Proof Radiator Coolant Filling Funnel Kit
Spill Proof Radiator Coolant Filling Funnel Kit 15-pcs Cooling System fill kit